Expansion Microphones - Increase the audio coverage of your conference room by pairing the Expansion Microphone with your SoundStation conference phone. | Poly, formerly Plantronics & Polycom
Polycom HDX White Ceiling Microphone Extension Kit, 2200-23810-002
Polycom RealPresence Tabletop Microphone Array - Video Conferencing Jordan
Extended Mic Cables – 7 foot, Pair for Polycom IP7000 | Business Telecom Products
Amazon.com : Plantronics Poly Polycom Expansion Mic for RealPresence Debut (2200-69631-001), Black : Office Products
Polycom Studio Expansion Microphone - SingaporeTouchLCD.com
Mic Microphone Cable For Polycom Group 300 310 500 550 700 D Type 14 Pin 4th Generation Hdx6000 Hdx7000 Hdx8000 Hdx9001 Hdx9002 - Audio & Video Cables - AliExpress